[RTADPA BW Tests] New Sprucing bandwidth test using latest-available HLT2 input.

related to: lhcb-datapkg/PRConfig!361 (merged) + lhcb-core/LHCbPR2HD!270 (merged) + lhcb-core/LHCbNightlyConf!1121 (merged)

Adds new sprucing qmt and sprucing-job-config for latest BW test job.
Updates the BW qmts restriction to detdesc to be in CMakeLists to better match convention.

ToDo:

• BWTesters + DPAWP1
  • Shunan Approved
• CI-test (in parallel)
• DmitryPopov's magic step post-merge # Requested

Hlt/Hlt2Conf/tests/qmtest/sprucing.qms/test_spruce_bandwidth.qmt

@@ -11,7 +11,7 @@
 -->
 <!--
 Make sure the Sprucing bandwidth test runs without errors for the wg-stream configuration.
-Only runs on platform: x86_64_v3-centos7-gcc12\+detdesc-opt, to mimic the LHCbPR BW tests.
+Only runs on platform: x86_64_v3-centos7-gcc12+detdesc-opt+g, to mimic the LHCbPR BW tests.
 -->
 <extension class="GaudiTest.GaudiExeTest" kind="test">
 <argument name="program"><text>gaudirun.py</text></argument>